CVE-2023-1989: Kernel: use after free bug in btsdio_remove due to race condition
Vulnerability summary
CVE-2023-1989 is a high (CVSS 7.0) Use After Free vulnerability in debian debian_linux. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 38% of scored vulnerabilities.
Not severe (CVSS 7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 54 · Related 43Timeline
- 11-04-2023PublishedVulnerability first disclosed.
- 01-10-2026Last modifiedVulnerability information updated.
Description
A use-after-free flaw was found in btsdio_remove in drivers\bluetooth\btsdio.c in the Linux Kernel. A call to btsdio_remove with an unfinished job may cause a race problem which leads to a UAF on hdev devices.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.44%
Chance of exploitation in the next 30 days
Percentile
38%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.44% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu100 products
- linuxAll versions (No fix recorded) | < 5.4.0-169.187 | < 5.15.0-91.101
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1116.126 | < 5.15.0-1051.56
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Netapp5 products
Debian2 products
- linux< 6.1.52-1 | < 6.3.7-1
- debian_linuxEOL10.0 | 12.0
Linux1 product
- linux_kernel≥ 2.6.24, < 4.14.312 | ≥ 4.15, < 4.19.280 | ≥ 4.20, < 5.4.240 | ≥ 5.5, < 5.10.177 | ≥ 5.11, < 5.15.105 | ≥ 5.16, < 6.1.22 | ≥ 6.2, < 6.2.9
4 vendors · 108 products
References
21 links- git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=f132c2d13088REPORTMailing ListPatchVendor Advisory
- lists.debian.org/debian-lts-announce/2023/05/msg00005.htmlMailing ListX TransferredThird Party Advisory
- lists.debian.org/debian-lts-announce/2023/05/msg00006.htmlMailing ListX TransferredThird Party Advisory